"block scope" means both use strict; and no strict; have effect from where they are to the end of the innermost enclosing block, so no, a later no strict doesn't undo an earlier use strict. It just changes it for the innermost scope from that point in the code on....

Well, clarity and speed. Unlike what the popular answers and question in SO say - the real primary goal of strict mode and the "use strict" directive is to eliminate dynamic scoping in JavaScript which is why changing arguments via arguments and changing arguments itself is not allowed, why with...

No, it doesn't. Strict mode is scoped. So only the code within your main is in strict mode. Note that while strict mode is scoped, some effects of it can be seen outside of strict mode code. That isn't the case with your code, but I thought I should mention...

The problem does exist with node v0.10.28 (latest stable) installed along with V8 v3.14.5.9 (and earlier versions), but the problem is not node itself but with V8, which has a bug. The bug report can be found in issue 2273 posted on Aug 5, 2012. A strict mode function should...

The only way to know where all possibilities for an E_STRICT to be emitted would be to grep the source looking for E_STRICT. Basically, look here at the master branch: http://lxr.php.net/search?q=&defs=&refs=E_STRICT&path=Zend%2F&hist=&project=PHP_TRUNK. Note that in some cases master may differ from a particular version in what E_STRICT errors are raised and...

There is a Bugzilla ticket here. From what I gather (here and other pages I have looked up), duplicate properties are legal in ECMAScript version 6, opposed to ES5, where it is forbidden in strict mode.

function in_strict_mode() { return !this; } This function can return different results depending on how you call it. Remember that the this context is determined by the function call, not the function definition. Therefore: in_strict_mode.call(new Object()) === false Crockford's version defines and immediately calls an inner function, so it can...

Is this the intended behavior? Unfortunately, yes. The intricacies that come into play with class declarations make it so that strict rules aren't always applied when they all occur in the same script; a single class per file doesn't exhibit this issue. Because Meat is a Food, there shouldn't...

Try using Generics. Public Interface ICell(Of T) Property Value As T End Interface Public Class cell(Of T) Implements ICell(Of T) Public Property Value As T Implements ICell(Of T).Value Public id As Long Public Formula As String Public ix As Integer Public lev As Integer End Class Then both of these...

Variable declarations (i.e. var x;) are valid for the entire scope they are written in, even if you declare after you assign. This is what is meant by "hoisting": the var x; is hoisted to the beginning of the scope, and the assignment x = 6; is fine because x...

Short answer YES the its a good practice because MeteorJs at the end of the day is Javascript where should I include this statement? At the very top of each file. Also @pfkurtz on this SO gives 2 methods to use it, im never test that options, but the answer...

I don't think you get Number for typeof 3, typeof 3 is 'number' and that's not the same thing as Number. In JavaScript, if you have a = 3 and b = new Number(3), then: a == b // true a === b // false typeof a // 'number' typeof...

The problem is this: TextBox1.Text = "Antique Lights are On" And Label19.ForeColor = Color.Red Starting in VS 2012, you didn't have to include the underscore for a line continuation in VB.NET. So this is interpreted as boolean statement: "Antique Lights are On" And Label19.ForeColor = Color.Red Since "Antique Lights are...

A name global variable already exists, unrelated to your code; it represents the name of the current window, so you are assigning to an already existing variable. window.name; // the name of the current window for cross-window communication Everything on window is declared as a global - so it is...

This is probably because you are using elements that are associated with a specific DOCTYPE. <!DOCTYPE html> defaults to html5. If no DOCTYPE is specified, you webpage defaults to quirks mode. Since you set everything up according to this standard, it isn't compatible with a standard mode.

No. Strict mode does extend to all descendant (read: nested) scopes, but since your fetch function is not created inside the constructor it is not inherited. You would need to repeat the directive in each of the prototype methods. Privileged methods in contrast would be in strict mode when the...

It means that strict mode makes calls in proper tail position guaranteed to be able to be implemented as tail calls, since it prohibits anything that might interfere with that optimization; namely that a strict-mode function cannot be accessed through a caller property. It doesn’t mean “enables” in the sense...